Пуля винтовки,пробила стену толщиной 35 см,причем ее скорость уменьшилась с 800 до 400 м/с. Определите ускорение пули.

Пуля винтовки,пробила стену толщиной 35 см,причем ее скорость уменьшилась с 800 до 400 м/с. Определите ускорение пули.
- Предмет:
  Физика
- Автор:
  devinuqag
- 6 лет назад

Ответы 2

S=35см=0,35 мV0=800 м/сV= 400 м/сНайти : а а=( V^2 - V0^2) / 2Sa= ( 400^2 - 800^2) / 0,7=(160000-640000) / 0,7=-480000/0,7=-685714
- Автор:
  reagan
- 6 лет назад
- 0
s=(v^2-v0^2)2a (перемещение без времени)0.35=(400^2-800^2)\2aa=(400^2-800^2)\0.7 (формула правильная, но результат меня смутил- сверьте с ответом)
- Автор:
  julio58
- 6 лет назад
- 0
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Пуля винтовки,пробила стену толщиной 35 см,причем ее скорость уменьшилась с 800 до 400 м/с. Определите ускорение пули.

Ответы 2

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